Communication with an elevator system

An elevator installation, comprising:

• an elevator car disposed in an elevator shaft;
• an elevator cabin sensor coupled to the elevator car;
• and
• a computer-based communication device, the communication device being coupled to the elevator cabin sensor and configured to,
• set up at least one communicative connection in at least one communication network by transmitting a signal,
• receive at least one first signal from the elevator cabin sensor, wherein the at least one first signal is captured by an elevator cabin telephone and comprises a data signal and a voice signal,
• transmit at least one second signal to at least one computer device in a remote supervisory control center using the at least one communicative connection, the at least one communicative connection being maintained permanently, and
• use a firewall to prevent any signal reception via the communicative connection.

One or more computer-readable memories having encoded thereon instructions that, when executed by a processor, cause the processor to perform a method, the method comprising:

• setting up at least one communicative connection in at least one communication network, said setting up comprising at least one communication apparatus transmitting a signal;
• receiving, using the at least one communication apparatus and at least one network, at least one first signal from an elevator system;
• and
• transmitting, using the at least one communication apparatus and at least one communication network, at least one second signal to at least one computer device in a remote control center, the at least one communicative connection being maintained permanently;
• and
• causing at least one firewall in the communication apparatus to prevent any signal reception via the communicative connection.

A method for communication between at least one elevator system and at least one remote supervisory control center, the method comprising:

• setting up at least one communicative connection in at least one communication network, said setting up comprising at least one communication apparatus transmitting a signal;
• receiving at least one first signal from the elevator system by the at least one communication apparatus in the at least one elevator system via at least one signal network;
• transmitting at least one second signal from the communication apparatus in the communication network to at least one computer device in the remote supervisory control center, the communicative connection being maintained permanently;
• and
• causing at least one firewall in the communication apparatus to prevent any signal reception via the communicative connection.